Advertisement
Quick Links
This symbol stands by a very important warning concerning the safety of persons.
Its non-observance can cause a very serious risk for the exposed personnel.
INTRODUCTION
The VISION photoelectric barrier is a multi-beam optoelectronic safety system. It belongs to
the family of Type 2 electrosensitive devices for the protection of personnel exposed to risks
arising from the use of hazardous machinery or plant.
The VISION barrier, which consists of an Emitter and a Receiver, is a type 2 optoelectronic
safety device according to standards IEC 61496-1 and IEC 61496-2.
VISION is available in two different families of models depending on the maximum working
range : 6m (VL models) and 16m (VH models).
The two built-in safe static PNP outputs enable the barrier to be connected to the AD SR
safety modules or to a safety PLC or to another control system that satisfies the specific
requirements and safety level of the application.
VISION is ideal for protecting:
Machinery for product handling such as conveyors, palletizing, collating machines;
packaging and wrapping devices; automated assembly lines; automated warehousing.
If necessary, for any safety-related problems contact the competent safety
authorities or industrial associations in the country of use.
For applications in the food industry, please contact the manufacturer to ensure that
the barrier contains materials that are compatible with the chemical agents utilized.
The protective function of the optoelectronic devices is not effective in the following cases:
If the machine stopping control cannot be actuated electrically and it is not possible
to stop all dangerous machine movements immediately and at any time during the
operating cycle.
If the machine generates dangerous situations due to material being expelled or
falling from overhead.
2
8540488 • 21/03/2016 • Rev.13
Advertisement
Subscribe to Our Youtube Channel
Related Manuals for Reer VISION V3BL
Summary of Contents for Reer VISION V3BL
- Page 1 This symbol stands by a very important warning concerning the safety of persons. Its non-observance can cause a very serious risk for the exposed personnel. INTRODUCTION The VISION photoelectric barrier is a multi-beam optoelectronic safety system. It belongs to the family of Type 2 electrosensitive devices for the protection of personnel exposed to risks arising from the use of hazardous machinery or plant.
- Page 2 NEW SAFETY PARAMETERS FOR TYPE 2 BARRIERS AND MANDATORY LABELLING With the publication of Edition 3 of the harmonized EN 61496-1 standard it is no longer possible to use a Type 2 safety light barrier for safety functions assessed as SIL 2 / PL d.
-
Page 3: Operation
OPERATION If the protected area is clear, the two outputs on the Receiver are active and enable the machine to which they are connected to operate normally. Each time that an object bigger than or equal in size to the resolution of the system intercepts the optical path of one or more beams, the Receiver deactivates the outputs. -
Page 4: Installation
INSTALLATION Before installing the VISION safety system, make sure that: The safety system is only used as a stopping device and not as a machine control device. The machine control can be actuated electrically. All dangerous machine movements can be interrupted immediately. In particular, the machine stopping times must be known and, if necessary, measured. - Page 5 The recommended Cf factors are shown in the table below: ENVIRONMENTAL CONDITION CORRECTION FACTOR Cf 0.25 Steam 0.50 Dust 0.50 Dense fumes 0.25 If the device is installed in places that are subject to sudden changes in temperature, the appropriate precautions must be taken in order to prevent the formation of condensation on the lenses, which could have an adverse effect on monitoring.
- Page 6 SAFETY DISTANCE CALCULATION The barrier must be installed at a distance that is greater than or equal to the minimum safety distance S, so that a dangerous point can only be reached after all hazardous machine movements have stopped (Figure 3). According to European standard EN999, the minimum safety distance S must be calculated using the following formula: S = K (t...
- Page 7 VERTICAL POSITION OF THE BARRIER 20 mm resolution models. These models are suitable for the protection of fingers. point of safety barrier danger 30 mm and 40 mm resolution models. These models are suitable for the protection of hands.
- Page 8 Multibeam Models. point of danger These models are suitable for the protection of the entire body and must not be used to protect safety barrier arms or legs. The minimum safety distance S is calculated according to the following formula: S = 1600 (t ) + 850 direction...
-
Page 9: Electrical Connections
ELECTRICAL CONNECTIONS WARNINGS Before making the electrical connections, make sure that the supply voltage complies with that specified in the technical data sheet. Emitter and Receiver units must be supplied with 24Vdc±20% power. The external power supply must comply with the standard EN 60204-1. The electrical connections must be made according to the diagrams in this manual. - Page 10 Connector pins EMITTER RECEIVER Figure 8 EMITTER NUMBER COLOR NAME MEANING Brown 24 VDC Power supply (positive) - Operation without TEST (+24VDC) White TEST - TEST control (Transition +24VDC - > 0VDC or open circuit) Blue 0 VDC Power supply (negative) Black N.C.
- Page 11 Example of connection of the VISION barrier to the ReeR AD SR1 safety module (with external contactors K1/K2) Figure 9 8540488 • 21/03/2016 • Rev.13...
- Page 12 Example of connection of the VISION barrier to the ReeR AD SR1 safety module (with internal contactors in series) Figure 10 In this configuration the test is compulsory (with frequency determined by risk analysis). 8540488 • 21/03/2016 • Rev.13...
- Page 13 Examples of connection of the VISION barrier Figure 11 8540488 • 21/03/2016 • Rev.13...
-
Page 14: Multiple Systems
Warnings regarding the connection cables For connections over 50 m long, use cables with a cross-section area of 1 mm The power supply to the barrier should be kept separate from that to other electric power equipment (electric motors, inverters, frequency converters) or other sources of disturbance. ... - Page 15 Figure 14 illustrates the values for the minimum distance d that must be maintained when the distance l between the Emitter and Receiver is changed. Figure 14 After installing the system, check whether any reflecting surfaces intercept the beams, first in the centre and then close to the Emitter and Receiver.
- Page 16 USE OF DEFLECTION MIRRORS In order to protect or control areas that can be accessed from more than one side, in addition to the Emitter and Receiver, one or more deflection mirrors can be installed. These mirrors enable the optical beams generated by the Emitter to be deviated on one or more sides.
- Page 17 MECHANICAL ASSEMBLY AND OPTIC ALIGNMENT The Emitter and the Receiver must be assembled opposite each other (at a distance specified in the technical data sheet). Use the fastening brackets and inserts supplied with the system to place the Emitter and the Receiver so that these are aligned and parallel to each other and with the connectors facing the same way.
Need help?
Do you have a question about the VISION V3BL and is the answer not in the manual?
Questions and answers